• 제목/요약/키워드: curcuminoid derivatives

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다양한 가공 조건에서 curcuminoid의 화학안정성 및 항산화능 변화 (Changes in the Chemical Stability and Antioxidant Activities of Curcuminoids under Various Processing Conditions)

  • 이보현;김다람;강스미;김미리;홍정일
    • 한국식품과학회지
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    • 제42권1호
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    • pp.97-102
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    • 2010
  • 생리활성 물질로 알려진 curcuminoid의 다양한 가공조건에서의 화학안정성 및 항산화능의 변화를 조사하였다. Curcuminoid의 화학안정성은 pH와 온도에 의해 크게 영향 받았으며, 온도 및 pH의 증가는 curcuminoid의 황색도 및 화학안정성을 감소시켰다. 특히 일반적인 멸균조건($121^{\circ}C$, 1.2기압)에서 액상의 curcuminoid를 고압가열처리 하였을 경우 80-90%의 황색도 감소 및 구조적 파괴를 초래하였다. 하지만 분말상태 curcuminoid 시료의 고압가열처리 시는 10% 미만의 감소가 있었다. 고압가열처리 후 curcumonoids의 DPPH 및 ABTS 라디칼 소거능은 각각 10.3 및 33.4%의 활성 감소를 보였으며, nitric oxide 소거능은 약간 증가하였다. 고압가열처리 후 각 curcuminoid의 잔류량의 분석 결과, curcumin이 99% 이상 감소하여 고압가열처리에 가장 민감한 것으로 나타났고 BMC는 16.5% 잔류하였다. 본 연구는 생리활성 증강의 목적으로 식품 중에 첨가된 curcuminoid가 다양한 가공, 조리 과정을 통해 화학적 변화 및 활성의 변화를 가져올 수 있음을 보여주며, 이와 같은 생리활성 물질의 안정화를 위한 적절한 가공, 조리 방법들이 신중하게 고려되어야 함을 제시하고 있다.

Nonlinear QSAR Study of Xanthone and Curcuminoid Derivatives as α-Glucosidase Inhibitors

  • Saihi, Youcef;Kraim, Khairedine;Ferkous, Fouad;Djeghaba, Zeineddine;Azzouzi, Abdelkader;Benouis, Sabrina
    • Bulletin of the Korean Chemical Society
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    • 제34권6호
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    • pp.1643-1650
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    • 2013
  • A non linear QSAR model was constructed on a series of 57 xanthone and curcuminoide derivatives as ${\alpha}$-glucosidase inhibitors by back-propagation neural network method. The neural network architecture was optimized to obtain a three-layer neural network, composed of five descriptors, nine hidden neurons and one output neuron. A good predictive determination coefficient was obtained (${R^2}_{Pset}$ = 86.7%), the statistical results being better than those obtained with the same data set using a multiple regression analysis (MLR). As in the MLR model, the descriptor MATS7v weighted by Van der Waals volume was found as the most important independent variable on the ${\alpha}$-glucosidase inhibitory.

Role of Curcuma longa, a traditional ayurvedic medicinal plant, in diabetes

  • Ponnusamy, Sudha;Zinjarde, Smita;Bhargava, Shobha;Kumara, Ameeta Ravi
    • 셀메드
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    • 제2권4호
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    • pp.31.1-31.7
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    • 2012
  • Curcuma longa belongs to the family Zingiberaceae and can be found in the tropical and subtropical regions of the world. It is widely used in Asiatic countries, especially India and South East Asia where it is cultivated commercially as a condiment. Its rhizomes exhibit anti-inflammatory, anti-human immunodeficiency virus, anti-bacterial, antioxidant effects, nematocidal activities, antiproliferative and antiangiogenic activities and are of pharmaceutical importance. Another relevant medicinal property exhibited by it is antidiabetic property which is reviewed here. Studies on the efficacy of crude C.longa extracts against type 2 diabetes in murine models reveal that it demonstrates a hypoglycemic effect by lowering the blood glucose levels under in vivo conditions. Clinical studies have revealed the safety of curucmin (major principle component exhibiting pharmaceutical properties from C.longa) on humans but with very low bioavailability. In view of its effective hypoglycemic effect and its low bioavailability, further studies are needed for the characterization of the bioactive principles and formulating the development of C.longa extracts as a novel anti-diabetic therapeutic agent.